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docs/doc/source/security/kubernetes/create-certificates-locally-using-openssl.rst
Keane Lim 3c5fa979a4 Security guide update 
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Change-Id: I13472792cb19d1e9975ac76c6954d38054d606c5
Signed-off-by: Keane Lim <keane.lim@windriver.com>
Signed-off-by: MCamp859 <maryx.camp@intel.com>
2021-03-12 15:10:40 -05:00

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Create Certificates Locally using openssl

You can use openssl to locally create certificates suitable for use in a lab environment.

  1. Create a Root Certificate and Key

    1. Create the Root CA private key.

      $ openssl genrsa -out my-root-ca-key.pem 2048

    2. Generate the Root CA x509 certificate.

      $ openssl req -x509 -new -nodes -key my-root-ca-key.pem \
-days 1024 -out my-root-ca-cert.pem -outform PEM
  2. Create and Sign a Server Certificate and Key.

    1. Create the Server private key.

      $ openssl genrsa -out my-server-key.pem 2048

    2. Create the Server certificate signing request (csr).

      Specify CN=<WRCP-OAM-Floating-IP> and do not specify a challenge password.

      $ openssl req -new -key my-server-key.pem -out my-server.csr

    3. Create the list.

      $ echo subjectAltName = IP:<WRCP-OAM-Floating-IP>,DNS:registry.local,DNS:registry.central > extfile.cnf

    4. Use the my-root-ca to sign the server certificate.

      $ openssl x509 -req -in my-server.csr -CA my-root-ca-cert.pem \
-CAkey my-root-ca-key.pem -CAcreateserial -out my-server-cert.pem \
-days 365 -extfile extfile.cnf

    5. Put the server certificate and key into a single file.

      $ cat my-server-cert.pem my-server-key.pem > my-server.pem